Boston Bruins forward Patrice Bergeron is concussed again.
Bergeron suffered a concussion on a hit by Ottawa Senators forward Colin Greening during the second period of Tuesday's game. Bergeron immediately left and game and didn't return.
Bergeron has a history of head injuries -- he has had concussions on three previous occasions during his NHL career -- and missed most of the 2007-08 season after being drilled by Philadelphia Flyers defenceman Randy Jones.
Bruins general manager Peter Chiarelli said Bergeron's concussion was "moderate" but did not indicate how long he will be out of the lineup.
"I don't know when you'll see him again," Chiarelli said.
News of Bergeron's injury comes a day after the Bruins acquired Jaromir Jagr from the Dallas Stars. The Bruins also added defenceman Wade Redden and minor-league forward Rob Flick in deals Wednesday.
ISLES SIGN PROSPECT
The New York Islanders signed defenceman Andrey Pedan to a three-year, entry-level contract Wednesday.
Pedan, a 19-year-old Lithuania-born Russian who was taken in the third round of the 2011 NHL draft, will report to Bridgeport of the AHL on an amateur tryout agreement, the Islanders said.
Pedan played three years in the OHL with the Guelph Storm, finishing with a career-high 44 points (14 goals, 30 assists) in 60 games this season. In 174 regular-season games, he had 26 goals, 70 assists and 386 penalty minutes.
The Islanders also activated forward Jesse Joensuu off injured reserve and sent David Ullstrom to Bridgeport. Joensuu hasn't played this season due to a sports hernia issue.
MCGINN SIGNS WITH 'CANES
Brock McGinn became the latest member of his family to sign an NHL contract.
McGinn, whose older brothers Jamie (Colorado) and Tye (Philadelphia) have both played in the NHL, on Wednesday signed a three-year, entry-level contract worth $2.25 million with the Carolina Hurricanes. The 19-year-old from Fergus, Ont., who played for the Guelph Storm of the OHL, will join Charlotte of the AHL.
"Brock is a gritty, skilled forward who skates well and hits everything," Hurricanes assistant general manager Jason Karmanos said.
McGinn was a second-round pick of the Hurricanes in 2012. He had 28 goals and 26 assists in 68 games with Guelph this season.
The Hurricanes also assigned defenceman Brett Bellemore to Charlotte.
PANTHERS INK TOP PICK
The Florida Panthers signed 2010 first-round draft pick Nick Bjugstad to an entry-level contract Wednesday.
The 20-year-old forward, who spent three seasons with the University of Minnesota Golden Gophers, will reportedly practice with the Panthers on Friday and make his NHL debut Saturday against the Washington Capitals.
Bjugstad, the nephew of former NHLer Scott Bjugstad, had 21 goals and 15 assists in 40 games with the Gophers this season. He played in world junior tournaments with the U.S. in 2011 and '12.
The New York Rangers sent forward Chris Kreider and J.T. Miller to Connecticut of the AHL. Kreider had two goals and one assist in 17 games while Miller had two goals and two assists in 26 games ... Northern Michigan goaltender Jared Coreau signed with the Detroit Red Wings and defenceman Brian Lashoff was recalled from Grand Rapids of the AHL. Coreau had a 2.70 GAA and .919 save percentage in 38 games with NMU ... St. Louis Blues goalie Jaroslav Halak could be out at least three weeks with a groin injury, according to TSN. Halak, who left Monday's win over Minnesota, missed eight games with a groin problem earlier this season. "He's out "¦ that's the best way I can describe it. I'll let you know when he's in," Blues coach Ken Hitchcock said.